Drive circuit and method for correcting internal overcurrent setting value thereof

Abstract

Embodiments of the present disclosure provide a drive circuit and a method for correcting internal overcurrent setting value thereof. The first current signal output from the first chip is converted into the second current signal which is configured to adjust the internal overcurrent setting value of the second chip by the timing controller.

Description

CROSS-REFERENCES TO RELATED APPLICATION[0001]This application is the International Application No. PCT / CN2018 / 111644 for entry into US national phase with an international filing date of Oct. 24, 2018 designating US, now pending, and claims priority to Chinese Patent Application 201811014036.X, filed on Aug. 31, 2018, the content of which is incorporated herein by reference in its entirety.BACKGROUNDField of the Invention[0002]The present disclosure relate to the field of electronic technologies, and in particular, to a drive circuit and a method for correcting internal overcurrent setting value thereof.Description of Related Art[0003]Traditionally, in the liquid crystal display panel the gate driving chip is usually integrated on the display panel. This design method greatly limits the reduction of the frame of the display. In order to reduce the frame of the display, the existing display usually adopts the gate driver less (GDL) architecture. In a GDL circuit, a gate driver chip i...

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Benefits of technology

[0056]Embodiments of the present disclosure provide a drive circuit and a method for correcting internal overcurrent setting value thereof. The current detector obtains the first current signal output from the first chip. The timing controller receives the first current signal and converts the first current signal into a second current signal which is configured to adjust an internal overcurrent setting value of the second chip, so that an internal overcurrent setting value of the second chip can be adjusted according to the first current signal output from the first chip. Thus, the output current of the second chip can be turned off in time when it is too high, thereby solving the problem that because the overcurrent protection circuits used by the boost chip and the power management chip often cannot turn off the corresponding current outputs in time, the panel burnout occurs, which has great security risks.

Problems solved by technology

Because the overcurrent protection circuits used by the existing boost chip and the power management chip often cannot turn off the corresponding current outputs in time, the panel burnout occurs, which has great security risks.

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